Jaapar, N. S., A. Ishak, A. Hashim, and O. F. Mohd Said. “Validity And Reliability of The Questionnaire Instrument Relationship Between Behavior and Environment on Body Fat Percentage Among 10 and 11 Year Old Female Students: Kesahan Dan Kebolehpercayaan Item Instrumen Soal Selidik Hubungan Tingkah Laku Dan Persekitaran Ke Atas Peratus Lemak Tubuh Dalam Kalangan Murid Perempuan 10 Dan 11 Tahun”. Jurnal Sains Sukan & Pendidikan Jasmani, vol. 10, no. 2, Aug. 2021, pp. 26-36, doi:10.37134/jsspj.vol10.2.4.2021.